<?xml version="1.0"?>
<div class="add">

<b>thus </b><a NAME="E1:5_2_1"/>
<font color="Maroon">c<sub>2</sub></font> <a href="domain_1.html#K3">`2</a>  is   <a href="petri.html#NM2">place</a> of <font color="Maroon">c<sub>1</sub></font>
 ;<br/>


</div>
